tests/kernel/unsorted/string_concatenation_test.dart

// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

import 'package:expect/expect.dart';

class A {
  toString() => 'hello';
}

main() {
  Expect.isTrue('begin ${new A()} end' == 'begin hello end');
}